Graft and rapid propagation method for commercial production of Paeonia rockii

Abstract

The invention discloses a rapid grafting propagation method for commercial production of paeonia rockii, and relates to the fields of grafting and propagation of flowers. The method comprises the following steps: establishing a fine variety scion collecting garden, establishing a rootstock production garden, preparing before grafting, selecting rootstocks, collecting scions, sterilizing the scions, sampling inspection, grafting, storing in sand, managing the sand storage, taking out of a greenhouse, planting and the like. The method helps determine a principle for selecting a grafting time based on temperature, thus improving the survival rate of the rare species (the paeonia rockii) from original 35% to more than 75%, causing large-scale propagation of the paeonia rockii to be possible, and providing a technical guarantee for the commercial production. The method helps realize the desire that the paeonia rockii in Gansu blossoms in any cold areas, and also meets the requirements of people from different areas for admiring rare species.

Description

technical field [0001] The invention relates to a method for grafting and rapid propagation of flowers, in particular to a method for grafting and rapid propagation of Gansu purple spot peony commercially produced. Background technique [0002] Gansu is an important birthplace of Chinese peonies. Gansu purple spot peonies are resistant to cold and drought, with tall plants, large and colorful flowers, strong aroma, strong resistance to diseases and insect pests, and wide adaptability. Artificial protection measures can survive the winter in the open field, which is different from the Central Plains peonies mainly in Luoyang, Henan and Heze, Shandong. However, due to the influence of traditional factors, coupled with the lack of specialized research on Gansu peony, especially the long-term unresolved reproductive problems, Gansu purple spot peony cannot be industrialized and commercialized. There are mainly the following problems: [0003] 1. The reproductive technology is b...

AI Technical Summary

Problems solved by technology

The propagation speed of split root method is very slow, the seedlings produced are uneven, the number of branches is different, the root system is large and small, and the age of seedlings cannot be defined, which cannot meet the requirements of commercial seedlings, which affects the commercial production of purple spot peony. quality

Although the sowing method can increase the number of reproduction, but because the stamens and stamens of the better varieties of Gansu peony degenerate, the amount of seeds set is small, and the single-petal varieties with poor quality have a large amount of seeds, which makes the more degenerate the variety after sowing and reproduction, and it is impossible to make high-quality peonies. A large number of species and rare species have been multiplied, and it cannot meet people's viewing needs for fine varieties of peonies in Gansu

[0005] 2. The reproduction coefficient is low, making it difficult to form industrialized production

[0006] Due to the immature technology and the method of producing commercial seedlings by private farmers, the reproduction coefficient is low, and mass production cannot be carried out. The total annual production is less than 10,000 plants, which is difficult to meet the needs of domestic and foreign markets.

[0007] 3. Long period for nursery out and high cost

[0008] Gansu purple spot peonies are propagated by traditional seeding method, and they must wait for flowering to determine the species before they can be sold. The average period of nursery emergence is 4 to 5 years. In addition, Gansu is dry and rainy, and there is little cultivated land. Commercial seedlings are planted sporadically, and management and maintenance are inconvenient, which greatly increases the cost.